Don't build the task manager into Android builds.

chrome/browser/net/chrome_network_delegate.cc

Index: chrome/browser/net/chrome_network_delegate.cc
diff --git a/chrome/browser/net/chrome_network_delegate.cc b/chrome/browser/net/chrome_network_delegate.cc
index 6cb3a45cd21d80eb1a9065c48d983dae233429ff..379cc6ff4cad72e83a2dacf87c8b0b0a8d6435cd 100644
--- a/chrome/browser/net/chrome_network_delegate.cc
+++ b/chrome/browser/net/chrome_network_delegate.cc
@@ -18,7 +18,6 @@
 #include "chrome/browser/extensions/extension_process_manager.h"
 #include "chrome/browser/prefs/pref_member.h"
 #include "chrome/browser/profiles/profile_manager.h"
-#include "chrome/browser/task_manager/task_manager.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_view_host.h"
@@ -38,6 +37,10 @@
 #include "chrome/browser/policy/url_blacklist_manager.h"
 #endif
 
+#if defined(ENABLE_TASK_MANAGER)

[jam, 2012/04/02 15:49:28]

nit: you don't need this ifdef, so don't add it and leave the include where it
was (the fewer ifdefs the better)

+#include "chrome/browser/task_manager/task_manager.h"
+#endif  // defined(ENABLE_TASK_MANAGER)
+
 using content::BrowserThread;
 using content::RenderViewHost;
 using content::ResourceRequestInfo;
@@ -305,7 +308,9 @@ void ChromeNetworkDelegate::OnResponseStarted(net::URLRequest* request) {
 
 void ChromeNetworkDelegate::OnRawBytesRead(const net::URLRequest& request,
                                            int bytes_read) {
+#if defined(ENABLE_TASK_MANAGER)
   TaskManager::GetInstance()->model()->NotifyBytesRead(request, bytes_read);
+#endif  // defined(ENABLE_TASK_MANAGER)
 }
 
 void ChromeNetworkDelegate::OnCompleted(net::URLRequest* request,